Analysis by: Francis Xavier Antazo
 PLATFORM:

Windows

 OVERALL RISK RATING:
 DAMAGE POTENTIAL:
 DISTRIBUTION POTENTIAL:
 REPORTED INFECTION:
 INFORMATION EXPOSURE:

  • Threat Type: Spyware

  • Destructiveness: No

  • Encrypted: Yes

  • In the wild: Yes

  OVERVIEW

Infection Channel: Downloaded from the Internet, Dropped by other malware

This spyware arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.

  TECHNICAL DETAILS

File Size: 215,552 bytes
File Type: DOC
Memory Resident: No
Initial Samples Received Date: 16 May 2016
Payload: Connects to URLs/IPs

Arrival Details

This spyware arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.

Information Theft

This spyware gathers the following data:

  • Computer Memory
  • Monitor Information
  • Processor Information
  • DiskDrive Information

Stolen Information

This spyware sends the gathered information via HTTP POST to the following URL:

  • {BLOCKED}.{BLOCKED}.188.163

Other Details

This spyware does the following:

  • It terminates itself if it finds the following in the Processor Information:
    • *Xeon*
    • *Opteron*
  • It connects to the following site to download and execute code:
    • http://{BLOCKED}6.{BLOCKED}8.{BLOCKED}8.{BLOCKED}5:80/index.php

NOTES:

This malware adds the following process:

  • powershell.exe

  SOLUTION

Minimum Scan Engine: 9.800
FIRST VSAPI PATTERN FILE: 12.530.02
FIRST VSAPI PATTERN DATE: 16 May 2016
VSAPI OPR PATTERN File: 12.531.00
VSAPI OPR PATTERN Date: 17 May 2016

Step 1

Before doing any scans, Windows XP, Windows Vista, and Windows 7 users must disable System Restore to allow full scanning of their computers.

Step 2

Note that not all files, folders, and registry keys and entries are installed on your computer during this malware's/spyware's/grayware's execution. This may be due to incomplete installation or other operating system conditions. If you do not find the same files/folders/registry information, please proceed to the next step.

Step 3

Scan your computer with your Trend Micro product to delete files detected as W2KM_INFOSTEAL.A. If the detected files have already been cleaned, deleted, or quarantined by your Trend Micro product, no further step is required. You may opt to simply delete the quarantined files. Please check this Knowledge Base page for more information.

Step 4

Enable the macro virus protection in Microsoft Office Applications

[ Learn More ]


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